Gaya APA

Kotter, J, P., Cohen, D, S. (2002). The Heart Of Change - Real-life Stories of How People Change Their Organizations (Edisi 1). United State of America: Harvard Business review press.

Gaya MLA

Kotter, John, P.., Cohen, Dan, S.. "The Heart Of Change - Real-life Stories of How People Change Their Organizations". Edisi 1 United State of America: Harvard Business review press, 2002. TEXT.